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Questions  

The period of simple pendulum is measured as T in a stationary lift. If the lift moves upwards with an acceleration of 5 g, the period will be

a
The same
b
Increased by 3/5
c
Decreased by 2/3 times
d
T6

detailed solution

Correct option is D

T'T=gg'+a=gg+5g=16⇒T'=T6

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